Explosion

Heavy smoke pours from the debris as the Fire Department of New York (FDNY) responds to a 5-alarm fire and building collapse at 1646 Park Ave in the Harlem neighborhood of Manhattan March 12, 2014 in New York City. Reports of an explosion were heard before the collapse of two multiple-dwelling buildings that left at least 11 injured.

Andrew Burton/Getty Images

Heavy smoke pours from the debris as the New York fire department responds to a 5-alarm fire and building collapse at 1646 Park Avenue in the Harlem area of Manhattan in New York City. Reports of an explosion were heard before the collapse of two multiple-dwelling buildings that left at least 11 injured

Thai riot police officers assist a colleague during clashes with anti-government protesters near Government House in Bangkok...Thai riot police officers assist a colleague after an explosion during clashes with anti-government protesters near Government House in Bangkok February 18, 2014. A Thai police officer was killed and dozens of police and anti-government protesters were wounded in gun battles and clashes in Bangkok on Tuesday, officials and witnesses said. REUTERS/Athit Perawongmetha

Athit Perawongmetha/Reuters

Riot police assist a colleague after an explosion during clashes with anti-government protesters near Government House in Bangkok. A police officer was killed and dozens of police and anti-government protesters were wounded in gun battles and clashes in Bangkok, officials and witnesses said. Read more

A woman covers her mouth as smoke rises from a street damaged by an explosion of a Sinopec Corp oil pipeline in Qingdao, Shandong province November 22, 2013. An explosion in a Sinopec Corp oil pipeline killed 35 people in Qingdao in eastern China on Friday, causing a blaze that took several hours to bring under control and halting operations at a major oil port, media and ship brokers said.

China Daily/Reuters

A woman covers her mouth against the smoke in a street damaged by an explosion at a Sinopec oil pipeline in Qingdao, Shandong province, China. The explosion killed 35 people and caused a blaze that took several hours to bring under control, halting operations at a major oil port.

Soldiers, policemen and medical personnel gather at the site of explosions near the Iranian embassy in Beirut

Hasan Shaaban/Reuters

Soldiers, policemen and medical personnel gather at the site of explosions near the Iranian embassy in Beirut, Lebanon, which killed at least 20 people and injured more than 95 on Tuesday. Read more

People escape from the direction of a huge fire-ball after an accidental explosion at a petrol storage facility within the former U.S. residential housing in Mogadishu...People escape from the direction of a huge fire-ball after an accidental explosion at a petrol storage facility within the former United States residential housing in capital Mogadishu September 3, 2013. REUTERS/Feisal Omar (SOMALIA - Tags: DISASTER ENERGY)

Feisal Omar/Reuters

People escape from a huge fireball after an accidental explosion at a petrol storage facility at former US residential housing in Mogadishu, the Somalia capital Read more

People run to help outside one of two mosques hit by explosions in Lebanon's northern city of Tripoli, August 23, 2013. At least 13 people were killed and more than 50 wounded in two explosions outside mosques in Lebanon's northern city of Tripoli on Friday, security sources and witnesses said.

Omar Ibrahim/Reuters

People run to help outside one of two mosques hit by explosions in Lebanon’s northern city of Tripoli. At least 13 people were killed and more than 50 wounded in two explosions outside mosques in Lebanon‘s northern city of Tripoli on Friday, security sources and witnesses said

People shout for help at the site of an explosion in Beirut's southern suburbs...People shout for help at the site of an explosion in Beirut's southern suburbs, August 15, 2013. Rescue workers in the southern Beirut district hit by an explosion on Thursday have found nine bodies, a witness at the scene said. The powerful blast engulfed several cars in flames and also trapped people in a nearby building.  REUTERS/ Mahmoud Kheir (LEBANON - Tags: CIVIL UNREST POLITICS)

Mahmoud Kheir/Reuters

People shout for help at the site of an explosion in Beirut’s southern suburbs. Rescue workers in the southern Beirut district hit by an explosion on Thursday have found nine bodies, a witness at the scene said. The powerful blast engulfed several cars in flames and also trapped people in a nearby building Read more

Novice Buddhist monks offer prayers for peace at the Tergar Monastery, the site of an explosion, in Bodh Gaya, about 130 kilometers (80 miles) south of Patna, the capital of the eastern Indian state of Bihar, Tuesday, July 9, 2013. One man has been detained and sketches of two others have been prepared as investigators searched for clues Monday into a series of blasts at some of Buddhism's holiest sites in Bodhgaya.

Manish Bhandari/AP

Novice Buddhist monks offer prayers for peace at the Tergar Monastery, the site of an explosion, in Bodh Gaya, about 130 kilometers (80 miles) south of Patna, the capital of Bihar, in the east of India, on Tuesday. One man has been detained and sketches of two others have been prepared as investigators searched for clues into a series of blasts at some of Buddhism’s holiest sites in Bodh Gaya.

A firefighter is helped as he extinguishes fire at the site of an explosion in Beirut's southern suburb neighbourhood of Bir al-Abed on July 9, 2013.  A car bomb rocked Beirut's southern suburbs, stronghold of Lebanon's Shiite Hezbollah movement,  wounding 15 people, television reports and a military source said.

AFP

A firefighter is helped as he extinguishes a fire at the site of an explosion in Beirut’s southern suburb of Bir al-Abed on Tuesday. A car bomb rocked the suburbs, a stronghold of Lebanon’s Shia Hizbollah movement, wounding 15 people, television reports and a military source said.

The remains of the runaway fuel train that exploded in a deadly ball of flames in the center of  Lac Megantic, Quebec.

Mathieu Belanger/Reuters

The remains of the runaway fuel train that exploded in a deadly ball of flames in the center of Lac Megantic, Quebec in Canada.